CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
EPSS
Percentile
5.1%
The start_authentication function in lightdm-gtk-greeter.c in LightDM GTK+ Greeter before 1.7.1 does not properly handle the return value from the lightdm_greeter_get_authentication_user function, which allows local users to cause a denial of service (NULL pointer dereference) via an empty username.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | lightdm-gtk-greeter | < 1.6.1-5 | lightdm-gtk-greeter_1.6.1-5_all.deb |
Debian | 11 | all | lightdm-gtk-greeter | < 1.6.1-5 | lightdm-gtk-greeter_1.6.1-5_all.deb |
Debian | 999 | all | lightdm-gtk-greeter | < 1.6.1-5 | lightdm-gtk-greeter_1.6.1-5_all.deb |
Debian | 13 | all | lightdm-gtk-greeter | < 1.6.1-5 | lightdm-gtk-greeter_1.6.1-5_all.deb |